MaxSqrdSpeedFeature Class Reference

The MaxSqrdSpeedFeature class calculates the maximum speed (squared) of the gesture. More...

#include <standardfeatures.h>

Inheritance diagram for MaxSqrdSpeedFeature:

StlFeatureInterface List of all members.

Public Member Functions

virtual const std::string & key () const
virtual const std::string & title () const
virtual const std::string & description () const
StlFeatureResultT calcValue (const StlStroke &stroke, bool *ok=0) const

Static Public Member Functions

static const std::string & classKey ()
static const std::string & classTitle ()
static const std::string & classDescription ()
static StlFeatureResultT classCalcValue (const StlStroke &stroke, bool *ok=0)

Detailed Description

The MaxSqrdSpeedFeature class calculates the maximum speed (squared) of the gesture.

From: Rubine, D. Specifying Gestures by Example. Computer Graphics 25, 4 (July 1991), 329-337. Page 333:

dX_p = x_p+1 - x_p
dY_p = y_p+1 - y_p
dT_p = t_p+1 - t_p
f12 = max{ p=0, P-2, ((dX_p)^2 + (dY_p)^2) / (dT_p)^2 }


Member Function Documentation

static const std::string& MaxSqrdSpeedFeature::classKey (  )  [inline, static]

virtual const std::string& MaxSqrdSpeedFeature::key (  )  const [inline, virtual]

Implements StlFeatureInterface.

static const std::string& MaxSqrdSpeedFeature::classTitle (  )  [inline, static]

virtual const std::string& MaxSqrdSpeedFeature::title (  )  const [inline, virtual]

Implements StlFeatureInterface.

const std::string & MaxSqrdSpeedFeature::classDescription (  )  [static]

virtual const std::string& MaxSqrdSpeedFeature::description (  )  const [inline, virtual]

Implements StlFeatureInterface.

StlFeatureResultT MaxSqrdSpeedFeature::classCalcValue ( const StlStroke stroke,
bool *  ok = 0 
) [static]

StlFeatureResultT MaxSqrdSpeedFeature::calcValue ( const StlStroke stroke,
bool *  ok = 0 
) const [inline, virtual]

Implements StlFeatureInterface.


The documentation for this class was generated from the following files:
Generated on Mon Jul 30 09:46:52 2007 for Digest by  doxygen 1.5.2